24 lines
1.5 KiB
Plaintext
24 lines
1.5 KiB
Plaintext
This package provides a general-purpose tool for dynamic report
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generation in R, which can be used to deal with any type of (plain
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text) files, including Sweave, HTML, Markdown, reStructuredText,
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AsciiDoc, and Textile. R code is evaluated as if it were copied and
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pasted in an R terminal thanks to the evaluate package (e.g., we do
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not need to explicitly print() plots from ggplot2 or lattice). R code
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can be reformatted by the formatR package so that long lines are
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automatically wrapped, with indent and spaces added, and comments
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preserved. A simple caching mechanism is provided to cache results
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from computations for the first time and the computations will be
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skipped the next time. Almost all common graphics devices, including
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those in base R and add-on packages like Cairo, cairoDevice and
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tikzDevice, are built-in with this package and it is straightforward
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to switch between devices without writing any special functions. The
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width and height as well as alignment of plots in the output document
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can be specified in chunk options (the size of plots for graphics
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devices is also supported). Multiple plots can be recorded in a single
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code chunk, and it is also allowed to rearrange plots to the end of a
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chunk or just keep the last plot. Warnings, messages and errors are
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written in the output document by default (can be turned off). The
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language in code chunks is not restricted to R (there is simple
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support to Python and shell scripts, etc). Many features are borrowed
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from or inspired by Sweave, cacheSweave, pgfSweave, brew and decumar.
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